Black Bolt

Blacl Bolt is the monarch of the Inhumans, a race of human offshoots who were genetically altered by the Kree in mankind's prehistoric past.  Black Bolt has enhanced strength, can fly, can hurl ionic blasts, and the merest utterance of his voice unleashes a sonic wave of extraordinary destructive power.

Black Bolt has not appeared in any episodes of the Avengers: Earth's Mightiest Heroes, but was confirmed as existing in the continuity by being one of the heroes the Super-Skrulls were able to replicate.